Modbus RTU 4 Channel Relay Module with RS485/TTL UART, 1 Input 1 Output, 7-24...

Modbus RTU 8 Channel 12V Relays Module Featuring RS485 Input Output

Modbus RTU 4 Channel Relay Module with RS485/TTL UART, 1 Input 1 Output, 7-24...

8 Channel 12V Relays Module Modbus RTU With RS485 Communication For DIY Projects

Industrial 8-Ch PWM Input Module Modbus RTU Protocol Isolated RS485 Interface

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8Ch Input/Output Digital TTL LvTTL CMOS RS485 IO Control Module Modbus Rtu1876

Modbus RTU 8 Channel 12V Relays Module Featuring RS485 Input Output